Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1878645 | Applied Radiation and Isotopes | 2014 | 4 Pages |
Abstract
The activity concentration of a solution of 99Tc was absolutely determined by liquid scintillation measurements based on the triple-to double-coincidence ratio method (TDCR) and compared with the results given by 4Ïβ(LS)-γ(NaI) live-timed anticoincidence (with extending dead-time) and classical 4Ïβ(PC)-γ(NaI) coincidence counting systems based on using 60Co as the efficiency-tracing radionuclide. The results of anticoincidence and coincidence counting are, respectively, 0.18% and 0.66% higher than the result from TDCR measurements, but they are consistent within uncertainties.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Paulo A.L. da Cruz, Carlos J. da Silva, Denise S. Moreira, Akira Iwahara, Luiz Tauhata, Ricardo T. Lopes,